Answer: troglodytes

AnswerCrossword Clue
TROGLODYTESBrutes
TROGLODYTESCavemen
troglodytesA person who is regarded as being deliberately ignorant or old-fashioned
troglodytes(esp. in prehistoric times) A person who lived in a cave
troglodytesA hermit
troglodytesTROGLODYTE, a member of any of various peoples (as in antiquity) who lived or were reputed to live chiefly in caves